Hardware

[Marc-Paul]

Hey mmorselli,

i saw your hardware project youtube video and this was the only way i could reach you. I am currently working on a Hardware/Software project myself, for my Bachelor project. I want to use a Solenoid for haptical feedback on a Golf Club, but im not very experienced with hardware.
Could you help me with some questions?
First of all: is it possible to make the solenoid feedback with a batterie? if yes, which type would be best?
Do you use a mosfet or a transistor for handling the haptic feedback output from pin 1?
And can u do the the solenoid feedback without an arduino/rasperry pi? id prefer a smallest curcuit as possible.

Thanks a lot in advance !
Best Regards and Kudos, your gun looks amazing!
Marc

[mmorselli]

On my gun I'm using this 12V solenoid

https://www.amazon.co.uk/gp/product/B00R1LIH1K/

driven with this battery

https://www.amazon.co.uk/gp/product/B06XSZVJ6Q/

you can vibrate the solenoid using a 555 timer and 2N2222 NPN Transistor, but an arduino nano is much easier to use, mainly if what comes out of PIN 1 is not exactly the vibration you're looking for.

the last time I tried the trackers feedback signal was too long due a steamVR bug, but for a golf club would not be a problem, just cut it

[Marc-Paul]

Thanks a lot!
I just wondered if you know, if there is any powersource, small enough to not interfere with the clubs overall weight? Would be nice, since a powerbank that big would throw of swings a lot.

Thanks a lot for your help, appreciate it!

[mmorselli]

you should be able to drive a vibration motor directly with the 5V of the tracker. I have no idea if it can have the necessary current for a 5V solenoid

Hyperblaster has a vibration motor stronger than the Vive Wands, but has no batteries apart from the tracker

https://www.vive.com/us/VR-hyperkin-hyper-blaster-with-tracker/

[Marc-Paul]

Ok, I'll probably try a vibration motor. Thanks for the help! I'll tell you my further advancements